Legacy Technologies Ranked #26–#50 in Vietnam by Market Share (2026)

📈 Legacy Technologies Ranked #26–#50 in Vietnam

Legacy technologies are platforms and tools that have been discontinued or shut down and no longer operate. Some are completely defunct, while others remain functional but unsupported.

Vietnam is a Southeast Asian country with a population of over 99 million people.

Statistics based on 26K+ analyzed websites. About this data

The following list shows the legacy technologies ranked from 26th to 50th out of 64 used on websites in Vietnam.

Rank	Name	Market share
26	Foursquare New York, United States City Guide was a location-based social networking app that allowed users to discover and review local businesses and attractions. Free$$$Legacy	0.5%
27	Google Webmaster Tools Mountain View, California, United States The old Google Webmaster Tools, detected by the meta name "verify-v1", which have been deprecated in favor of Google Search Console. FreeLegacy	0.5%
28	Lightbox for Bootstrap A lightbox module for Bootstrap that supports images, YouTube videos and galleries - built around Bootstrap's Modal plugin. FreeOpen sourceLegacy	0.4%
29	Polymer A library for creating encapsulated, reusable web components. FreeOpen sourceLegacy	0.4%
30	YUI New York, United States A legacy, open-source JavaScript and CSS library for building interactive web applications with a focus on modular architecture and cross-browser consistency. FreeOpen sourceLegacy	0.3%
31	Prerender Cambridge, Massachusetts, United States A deprecated browser hint that instructed web browsers to preload and render a web page in the background before navigation occurred. Legacy	0.3%
32	Cufon A discontinued JavaScript library that performs text replacement on web pages, using the canvas element and VML to render fancy fonts. FreeOpen sourceLegacy	0.3%
33	Glitch San Francisco, California, United States A collaborative programming environment that was shut down after being acquired by Fastly. Legacy	0.3%
34	Shadowbox A lightbox library for photos and videos, last released in 2014. FreeOpen sourceLegacy	0.3%
35	Closure Library Mountain View, California, United States A low-level JavaScript library designed for building complex and scalable web applications. FreeOpen sourceLegacy	0.3%
36	ASKfm Riga, Latvia A question and answer social networking site that was shut down at the end of 2024. Legacy	0.3%
37	iScroll A high-performance JavaScript library for smooth scrolling. FreeOpen sourceLegacy	0.2%
38	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.2%
39	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.2%
40	Cloudflare Apps San Francisco, California, United States A deprecated service that allowed the installation of third-party scripts/plugins on a website with a single click. Legacy	0.2%
41	Oracle Moat Austin, Texas, United States A measurement and marketing analytics suite designed to measure media performance across digital and TV advertising campaigns. Legacy	0.2%
42	Google Code Archive Mountain View, California, United States Google Code was a code hosting service for open source projects. FreeLegacy	0.2%
43	Salesforce Chat San Francisco, California, United States A live chat solution from Salesforce that is currently in maintenance-only mode and is scheduled to be retired in February 2026. Legacy	0.1%
44	Fort Awesome A commercial icon font service that allowed users to create custom icon fonts by selecting specific icons for their projects. Free$49+/yearLegacy	0.1%
45	Google Podcasts Mountain View, California, United States A podcasting directory that was shut down in mid-2024 with the migration to YouTube Music. Legacy	0.1%
46	Prefix-free A legacy script that adds browser prefixes to CSS code when needed for old browsers. FreeOpen sourceLegacy	0.09%
47	Flattr Malmö, Sweden A micro-donation platform that shut down in November 2023. Legacy	0.08%
48	HeadJS A JavaScript loader that loads scripts in parallel, but executes them in order. FreeOpen sourceLegacy	0.06%
49	Microsoft FrontPage Redmond, Washington, United States A WYSIWYG HTML editor and website administration tool that was part of Microsoft Office until it was discontinued in 2003. $149Legacy	0.06%
50	Audience Studio San Francisco, California, United States A data management platform that was retired in February 2024. Legacy	0.04%

👉 See Also

🌎 Legacy in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 26,710 websites from Vietnam.
We currently track the presence of 119 legacy technologies across the web.
Of these, 64 were detected on websites from Vietnam.
Statistics were last calculated on June 20, 2026.
For more details, see our methodology and disclaimer.